Across
- 1. the total number of different species in a given area at a given time
- 4. a group of different species that live together in one area at the same time
- 7. this level recognizes multiple ecosystems that share similar characteristics but are in different parts of the planet
- 9. any biotic or abiotic factor that restricts the population size
- 10. environment that is mostly land
- 12. limiting factors that affect the size of the population regardless of the number of individuals in the population
- 16. all of the interacting populations in a community as well as the nonliving parts of the environment
- 17. the nonliving parts of an environment
- 20. our planet along with all abiotic and biotic factors on it
- 22. the limit to how many organisms it can support
- 24. begins with a period of slow growth followed by a brief period of exponential growth before leveling off due to limiting factors; often called a "S" shaped curve
- 25. a group of organisms, all of the same species, which interbreed and live in the same area at the same time
- 26. organisms die and the size of the population decreases
Down
- 2. movement of individuals into a population
- 3. a species that has an unusually large effect on its ecosystem
- 5. environment that is mostly water
- 6. limiting factors that are affected by the number of individuals in a given area
- 8. role or position a species has in its environment
- 11. a group of organisms that are able to interbreed and produce fertile offspring
- 13. occurs when a population size increases dramatically over a period of time; often called a "j" curve
- 14. place where an organism lives out its life; includes all abiotic and biotic factors
- 15. new organisms are born and the size of the population increases
- 18. an individual living thing
- 19. the living parts of an environment
- 21. movement of individuals out of a population and into another population
- 23. the study of the relationships between two organisms or between the organism and its environment